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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
The addition of BCC to the message frame increases the efficiency of detecting errors in transmissions. which one of the error check systems employs a calculated total by the receiver in comparison to the total of the received data?
There are several stages in the alarm lifecycle. Which of these stages has the continuous overseeing and documentation of the performance of the alarm system?
IPv4 network classes can also be defined by the default subnet masks that they use. If the subnet mask was 255.255.0.0, which of the classes below would be used?
There are a collection of standards that defines the access control for wired Ethernet. Which one of the answers below is the standard for physical connections between devices being copper or fiber-optic media?
In a motor control function block program, conditional block are used. Which of the answers below is best described as a condition that must be TRUE before a device can be activated?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the switch interacts with?
In the protocol specifications of Modbus, there are 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the input registers addresses?
With any GUI, there are opportunities to use gathered data visually. Which of the methods below would be best described as one that would allow an operator to anticipate the tendencies of a process by the creation of a short term measurement values plot?
There are several layer within the a typical DCS., each with it's own responsibilities. Which of the levels below is responsible for the maintenance and configuration of the control system?
Over the lifetime of a HMI, there will be changes to it's software form the supplier. Which of the terms below would best describe the red number in the picture below?
Twisted pair to fiber optic is the best example of which of the following converters?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "A"?
display resolution determines the graphic flexibility of the HMI hardware to be moved to different GUIs? which of the aspect ratios below would be most commonly used for a display?
Alarm management is based upon the process conditions model. Which of the conditions in that model could be described as conditions resulting in poor product and increased energy waste?
DCS commonly is considered a computerised control system for a plant that has central operator supervisory control. Which of the terms below is best described as a system that allows for exchange of data throughout, but can have remote systems within the system?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "I"?
The wired Ethernet transmission standards are defined by the OSI model layers. Which of the answers below is one of those defining layers?
Which of the answers below best represents the recommended standard that uses an end device circuit to provide the encoding of characters?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "B"?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses the conversion of dc voltage levels to ac to represent logic states?
In a typical GUI, values take one of four generic indicators. Which of the indicators below would best represent the image below?
In each OSI layer, each device must be identified to be used. In which of the layers below does the physical address of each network device reside?
There are two characteristics that are defined by the classifications of the IPv4 networks. Which of the answers below contains both of those characteristics?
Which of the answers below is not an advantage of digital communications to field devices?
Each network layer for a DCS has it's own specialized equipment or software. Which of the layers below would allow various workstations to receive data from servers and controllers?